Paper winding machine



Feb. 21, 1950 w. E. STONE PAPER wmome momma Filed Aug. 3, 1946 3Sheets-Sheet 1 l e m l I i i I i k 7 I .4 i Q 2 INVENTOR WILLIAM ERNESTSTONE BYW ATTORNEY v Feb. 21, 1950 w. E. STONE PAPER WINDING MACHINE r 3Sheets-Sheet 2 Filed Aug. 3, 1946 v INVENTOR WILLIAM ERNEST STONE E. N RY O T T A Feb. 21, 1950 E. 2,498,224

PAPER WINDING MACHINE Filed Aug. 3, 1946 3 Sheets-Sheet 3 I 4- :5 5 4H51/45 I I 42 48 Valve sai Pump

INVENTOR /g X///// WlLLIAM ERNEST 5TONE v 5 BYCzZ 47/ ATTORNEY- PatentedFeb. 21, 1950 UNITED STATES PATENT OFFICE PAPER WINDING MACHINE WilliamErnest Stone, Shrewsbury, Mast, as-

sirnor to Rice Barton Corporation, Worcester, Mass., at corporation ofMassachusetts Application August 3, 1946, Serial No. 688,258

4 Claims.

paper web is wound on an empty winding roll which is supported in aposition herein called 1% initial position, in such a manner that theroll engages the under driving drum to the end that the latter elementwill drive the winding roll. The end portion of the web will begin towind on said roll and as soon as the web has become firmly fixed to theroll by the winding action, the roll is moved into a secondary positionwhere it remains until the roll has become filled, such move ment intothis'secondary position enabling an empty winding roll to be broughtinto the primary.

or initial position.

As soon as the roll which is in the secondary position has becomefilled, the web is severed and quickly transferred to the new emptywinding roll, thus to permit the filled winding roll to be removedwithout stopping the winding of the paper web.

The present machine utilizes two separate supporting frames which aremovable with respect to each other thereby to admit of transference of aroll from one to the other frame, from the initial to secondary orrunning position.

However, it has been found that the above described mechanism has aserious fault in that the paper web may be eitherwound too tightly oreven sometimes damaged when being wound on a roll supported in thesecondary position. This fault is due to the fact that as the paperactempts have resulted in a'simple and eflective answer to the problem.It is, therefore, an object of the present invention to provide a paperwinding machine with means whereby the nippressure between a windingroll and a driving drum may be adjusted.

It is a further object of the present invention to provide a meanswhereby the nip-pressure of the present type of machine will bmaintained substantially constant as the paper is accumulated upon thewinding roll.

With the above and other objects in view as will hereinafter appear, theinvention comprises the devices, combinations and arrangements of partshereinafter set forth and illustrated in the accompanying drawings ofapreferred embodiment of the invention, from which the several featuresof the invention and the advantages attained thereby will be readilyunderstood by those skilled in the art. J In the accompanying drawings:

Fig. 1 represents a top plan view of a reel winding machine. I

Fig. 2 is a side elevation of Fig. 1 takensubstantially along line 2--2of Fig. 1 and showing the paper drum in its initial winding position.

Fig. 3 is also taken along line .22 of Fig. 1 and shows the paperwinding roll in its secondary position. i

Fig. 4 is substantially the same as Fig. 3 but illustrating a full paperroll.

cumulates on the roll the weight of the roll will increase thus. causingthe nip-pressure existing between the winding roll and the winderdriving drum to become very great. When the nippressure becomes toogreat-the tension in the paper web will become so high as to cause the Iroll to be wound too tightly or else it will be found that the surfacefinish of the paper will be damaged.

In the past attempts have been made to overcome these shortcomings inthe above describedwinding mechanism, but none of these prior at- Fig..5 is an enlarged side view, partly in section, of the elementscomprising the present invention.

Fig. 6 is a view, partly in section,- of the hydraulic' cylinderelements taken substantially along line 6-6 of Fig. 1.

Fig. 7 is a top plan view of one of the hydraulic cylinder mountingplates.

Referring particularly to Figs. 1 and 2, the present invention isincorporated in a winding machine which comprises the side frame membersH1 and I i between which is mounted a driving shaft I2 carrying theusual driving drum I3. This driving drum it. maybe driven by a motor Itor other suitable driving means connected with the shaft l2. Mountedadjacent each end of the driving drum I3 is one of a pair of quadrantarms l5 and it each of which is mounted upon a respective shaft 11 andI8 which are in turn each journaled in a respectiv one of the 1 journalbox 20 has rotatably mounted therein one end of a shaft 2| upon which ismounted the usual paper winding roll 22. As is usual with this type ofmechanism, th journal boxes 28 are adapted for vertical movement withinthe yokes 9, l9 to the end that the paper roll 22 may be readilyinserted therein.

The lower end of the quadrant arms l and I6 each.are provided with asegment gear 23 each of which meshes with a pinion 24 carried by a shaft25 journaled in the side frame members Ill and H, the shaft 25 beingconnected to a hand wheel 26 by means of a gear reduction train locatedin member ID all in the usual manner. Thus, an operatorby turning thehandle 26 may readily swing the quadrant arms l5 and I6 about their axesl1 and |8 thereby to swing the-roll 22 about the driving drum l3. Figs.1 and 2 illustrate the quadrant arms l5 and IS in their initialpositions as resting against stationary stop members 21, 21 which arecarried by the frame members l0 and Also journaled in the opposite framemembers I0 and H is a shaft 28 upon which are rigidly mounted a pair ofarms 29, 29 the tops'of which has pivotally secured thereto a piston rod88 by means of a suitable pin 31. This piston rod 36 extends downwardlyto be received within a hy-' draulic cylinder 38 which snugly embraces apiston head provided on the rod 36. (See Fig. 6.) Each of the cylinders38, 38 is mounted in a cylinder mounting frame 40 which comprises a baseplate 4| secured by means of bolts 42 to a machine base 43. Extendingupwardly from the plate 4| are a pair of spaced plates 44 and 45 betweenwhich is pivotally mounted the cylinder 38 by means of a pair of crosspins 48 and 41. As may be noted in Figs. 6 and 7, each of the 52 and52'. A single valve. 53 controls the fluidto the end that asingle'movement of the valve handle 53 may be effective to exert apressure on each of the piston heads 39 upwardly within are providedwith yokes 3|! of a design similar to that of yoke |9. It is thefunction of the arms 29, 29 to receive the paper roll 22 whenever thequadrant arms l5 and i6 are swung in a counter clockwise direction thusto transfer the journal boxes 29, 20 into the yokes 38, 30.

In the use of the above described mechanism a web of paper 3| isdelivered from the driers, calenders, or other parts of a paper makingmachine, none of which is herein shown, thus, to be wound around thewinding roll 22 that'is journaled loosely and removablyin the upper endof the quadrant arms I5 and IE1 The peripheral contact between thedriving drum l3 and the winding roll 22 is such as to drive the roll 22in a clockwise direction thereby to wind the 'web or paper sheetthereon, the roll 22 being held in engagement with the drum |3 duringthe winding process by its weight. After a predetermined amount of paperis accumulated on the roll 22, the quadrant arms may be swung in acounterclockwise direction thereby to transfer the roll 22 from itsinitial position, as shown in Fig. 2, to a secondary position within thearms 29, 29 as shown in Fig. 3. The roll in this secondary positioncontinues to accumulate paper until a desired amount is reeled thereon.During the time that the paper is being wound upon the roll or reel 22in this secondary position, the weight thereof increases in proportionto the amount of paper accumulated. In some instances this weight ofpaper plus the weight imparted by the arms 29, 29 becomes so great thatthe paper may be damaged or else wound too tightly on the reel 22. Aswas noted hereinabove, it is the principal object of the presentinvention to provide means whereby this pressure may be relieved.Referring particularly to Figs. 2 and 5, 'each of the arms '29, 29 isprovided with a bearing sector member 32 which is pivotally secured asat 33 upon the lower portion of they arm 29, and which is adapted to bepositioned about the shaft 28 and to be secured to the end of the arm 29by means of a bolt 34. Depending from thisbearing sector 32 is a plateor crank member which the cylinders 38, 38. By moving the valve in theopposite direction the hydraulic pressure is thereby relieved to the endthat the piston heads 39, 39 may move freely within the cylinders 38, 38under the influenceof the mechanism connected therewith. Each of theplates 4|, 4| is provided with elongated apertures 54 for the purpose ofreceiving the bolts 42 and by virtue of the elongation of theseapertures 54 each of the plates 4| may be adjustably mounted upon themachine base 43 in a manner such that they may be shifted longitudinallyof the base 43. Referring toFigs. 5 and '7, the machine base is providedwith a pair of angle blocks 55, 55 each of which receives an adjustingbolt,56, the end portion of which is adapted to bear against arespective one of a pair of upright members 51, 51 provided on theplates 4|, 4|. By loosening the bolts 56, 58 and shifting them inanappropriate manner; each of the plates 4|, 4| may be shifted as hereinabove described. Referring to Fig. 3, it is to be noted that when thewinding roll 23' is in its secondary position the piston rod 31 isdisposed substantially in a vertical line, which line intersects theaxis of the shaft 28. Fluid pressure within the cylinders 38, 38, ifapplied at this time, would be ineffective to alter the pressureexisting between the rolls 22 and I3. However, as the paper accumulatesupon the roll 22, the

5 center of the roll will move away from the driving drum l3 until acondition exists such as illustrated in Fig. 4. As pointed outhereinabove, the

weight of the roll 22 increases proportionately to the amount of paperaccumulated thereon and,

therefore, the further the center of the roll 22 also turn about theaxis of shaft 28 to thewend that the cylinders 38, 38 are pivoted abouttheir ing torque upon the arms 29, 29 in a counterrespective axes. Thus,it is to be understood that any hydraulic pressure existing against thepiston heads 39, 39 will be effective to produce a turnclockwisedirection, thereby to relieve the pressurebetween the roll 22 and thedrum l3. It is.

to be understood, that the further the arms 29, 29

turn about the axis of shaft 28 the greater will 16 be the mechanicaladvantages oftha pistons 33, 36 Therefore, the greater the weight of theroll 22 the greater will be the effective pressure that the pistons 36,36 can bring to bear upon the arms 29, 29. The present inventioncontemplates the use of a constant pressure within the cylinders 38, 38throughout the entire winding cycle.

Whenever the valve is opened, a constant head or pressure of fluid willbe exerted upon the piston heads 39, 39 and this pressure may be soselected that the so-called nip-pressure existing between the roll 22and the driving drum l3 may be substantially constant throughout theentire winding operation. In other words, as soon as the roll 22 istransferred from the quadrant arms I! and It to the arms 29, 29 thevalve 5| may be opened thus permitting the hydraulic pressure to beexerted against the piston heads 39, 39. However, in the position shownin Fig. 3, this pressure will not be effective to add or detract fromthe normal pressure existing between the rolls 22 and I3 due to the factthat the pistons 36, 35 are in this position disposed directly in linewith the shaft axis 28. As the arms 29, 29 swing outwardly, the constantpressure exerted upon the piston heads 39, 39 will become increasinglyeflective to force the arms 29, 29 away from the drum l3 to the end thatthe increased weight of the roll 22 will be proportionately compensatedfor.

The present invention also contemplates that the pistons 35, 36 may beused to increase the nippressure existing between the roll 22 and thedrum i3 at their initial winding stages. In order to increase thisnip-pressure the mounting plates 4|, 4| may be moved out to theright-hand end of the frame members I and II thereby to produce aclockwise turning torque upon the arms 29, 29. However, as the arms 29,29 swing in a counterclockwise direction, this positive addition ofpressure upon the roll 22 and the drum I 3 will be entirely eliminatedand upon further movement of the arms 29, 29 the pistons 3'6, 39 will beeffective to produce a counterclockwise torque upon the arms 29, 29 ashereinabove described. The bearing plates II, II are only adjusted inthis manner in the event that the normal weight of the roll 22 and thearms 29, 29 is not suflicient to produce a proper amount of nip-pressurebetween the roll 22 and the drum l3.

From the above it is to be understood that each of the plate or crankmembers 35 functions as a force-compounding means which, when rotated ina counterclockwise direction, is eifective to multiply the constantpiston force to the end that the arms 29, 29 are biased away from thedrum I 3 with a force substantially proportional to the angular distancemoved by said arms. Each of the cranks 35 forms in conjunction with itsrespective piston 36, a toggle mechanism which, when it is in itsstraight-line position as shown in Fig. 5 is ineflective to bias thearms 29, 29 in any direction as the resultant force of the piston passesdirectly through the pivotal axes of the arms 29, 29.

Therefore, from the above description it is to be understood that thepresent invention provides a means whereby thenip-pressure may bemaintained substantially constant throughout the entire windingoperation. Thus, by selecting a proper hydraulic fluid pressure and byselecting a proper position for the cylinder pivots, the paper may bewound upon the winding r011 without being damaged or being wound tootightly.

I claim:

1. In a paper winding machine having a driving drum, a pair of armspivotally supported adia cent said driving drum, a paper winding rollcarried by said arms and disposed in surface contact with said drivingdrum for being driven thereby and for winding paper upon said windingroll, toggle means having one link thereof connected to and movable inunison with and about the axis of said arms while its other link ispivotally connected to a normally stationary means, and means to apply aforce against said toggle means at all times, said toggle means and saidlast mentioned means being so positioned that when said winding roll isempty the resultant of said force passes directly through and at rightangles to the pivotal axis of said arms. and said toggle means beingadapted, in response to an angular movement of said arms, to bias saidarms away from said driving drumwith a force substantially proportionalto the angular distance moved by said arms.

2. In a paper winding machine having a driving drum, a pair of armspivotally supported adjacent said driving drum, 9. paper winding rollcarried by said arms and disposed in surface contact with said drivingdrum so as to be driven thereby; the improvement which consists in theprovision of means for controlling automatically the pressure betweenthe driving drum and said winding roll, saidmeans comprising, ahydraulically actuated piston for biasing said winding roll away fromsaid drving drum, and crank means connecting said arms with said pistonin the manner of a toggle mechanism so that said piston is ineffectiveto bias said winding roll away from said driving drum when said windingroll is in a predetermined position and so that said piston iseffective, in response to an angular movement of said arms, to bias saidarms away from said driving drum with a force substantially proportionalto the angular distance moved by said arms.

3. In a paper winding machine having a driving drum, a pair of armspivotally supported adjacent said driving drum, a paper winding rollcarried by said arms and disposed in surface contact with said drivingdrum so as to be driven thereby; the improvement which consists in theprovision of means for controlling automatically the pressure betweenthe driving drum and said winding roll, said means comprising, a pistonpivotally supported about an axis disposed in parallelism with thepivotal axis of said arms and at right angles to the path of pistonmovement, a crank pivotally connected with said piston andrigidlyconnected with said arms, and means to bias said piston toward saidcrank, said crank and said piston forming a toggle mechanism effectiveto bias said winding roll either toward or away from said driving drumdepending upon the position of said arms relative to said driving drum,and said toggle mechanism being ineiIective to bias said arms in eitherdirection when said toggle mechanism is in a straight line position.

. 4. In a paper winding machine having a driving drum, a pair of armspivotally supported adjacent said driving drum, a paper winding rollcarried by said arms and disposed in surface contact with said drivingdrum so as to be driven thereby: the improvement which consists in theprovision of means for controlling automatically the pressure betweenthe driving drum and said winding roll, said means comprising, a pistonpivotally supported about an axis disposed in parallelism with thepivotal axis of said arms 7 and at right angles to the path of pistonmovement, a crank pivotally connected with said piston and rigidlyconnected with said arms, and

axis of said arms, and said toggle mechanism 10 being adapted, inresponse to an angular movement of said arms, to bias said arms awayfrom said driving drum with a force substantially proportional to theangular distance moved by said WILLIAM ERNEST STONE.

REFERENCES CITE) The following references are of record in the tile ofthis patent:

5 mm'nn STATES PATENTS Number Number Name Date Tucker Feb. 25, 1879Dulin May 28, 1908 Richardson Apr. 2, 1940 FOREIGN PATENTS Country DateFrance Mar. 8, 1911

